Routine Maintenance
Tracks and Running Gear
247 247
9811/9950-1
Checking the Track Tension
!MCAUTION
Recoil unit servicing must only be carried out by JCB
distributors. You could be killed or injured if you
tamper with it.
8-3-3-4
1 Prepare the Machine
Park the machine on level ground. Run it backwards
and forwards several times. Stop the machine after
running it forwards.
2 Set the machine in the posture shown with the track
to be checked raised from the ground and supported.
K
Fig 98. ( T 248).
3 Check the Tension:
Check that the tension measurement at A is between
60mm (2.4in) and 65mm (2.6in) for rubber tracks and
120mm (4.8in.) for steel tracks. K
Fig 98. ( T 248)
!MCAUTION
Always make sure that the track tension measurement
is not less than specified or severe strain to the track
will result.
8-3-3-3
4 Adjust the track tension.
a To tighten the track:
Pump grease through nipple B in adjusting screw
C until track tension is correct. K
Fluids,
Lubricants and Capacities ( T 180).
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